Finding the Fourth Proportional to 11,278.58, 16,919.49 and 3,488
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Solution
The fourth proportional to 11,278.58, 16,919.49 and 3,488 is: 5,232.50
Step by Step Solution
- Step 1: Write the proportion equation
11,278.58 : 16,919.49 = 3,488 : x - Step 2: Convert to fraction form
11,278.58/16,919.49 = 3,488/x - Step 3: Cross multiply
11,278.58x = 16,919.49 × 3,488 - Step 4: Simplify right side
11,278.58x = 59,015,181.12 - Step 5: Solve for x
x = 59,015,181.12/11,278.58 - Step 6: Final answer
x = 5,232.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.